Calamus (DTP)

Calamus is a desktop publishing application, originally built for the Atari ST computer.

Calamus is a software RIP application which generates high-quality output in any resolution.

Calamus also was one of the first DTP apps to support real virtual objects and frames, nondestructive vector masks, and editable PS/PDF import.

In March 2018, invers Software was closed, and sales and development of Calamus were discontinued, although the official website is still functioning as of 2022.

Rather than using kerning pairs or relying on simple side-bearing measurements, Calamus’ native fonts encode left and right bounds for each character at eight different latitudes.

Kerning in Calamus works with sets of left and right bounds measured at different heights for each glyph